Quote:

I would not wash with water, because water is absorbed by primer.
i used to do that until i got water bubbles under paint.
I would blow off with air , auto body tack rag (there is a difference.)
then wax and grease wipe and dry with clean white paper towels .
tape and wax and grease again and dry . mix paint into gun ,
lightly pass auto body tack rag just before spray and if need have it handy after base is dry to lightly catch nubs before laying down clear .



Depends on what primer is being used and if you shoot paint the instant after wiping.Most likely you didn't wait 5-10 minutes before spraying or your air supply needs better filters. I've been washing most of my work before paint for over 20 years,not once I had (water bubbles) you're talking about.